外文翻译--传感器速度控制开关磁阻电机的工业应用.doc

SENSORLESSSPEEDCONTROLOFASWITCHEDRELUCTANCEMOTORFORINDUSTRIALAPPLICATIONSAbstract:TheElektrotechnischeInstitutoftheUniversityKarlsruhehasdeveloped,optimisedandmanufacturedaSwitchedReluctanceDrivewithpowerconvertersandcontrolengineeringaccordingtothelatestscientificfindings.Themotorhasbeenconstructedfortheratedoutputpowerof18,5kWat1500r.p.m.forindustrialapplications.Thecommonsupplyforthevoltage-sourceconverteris3x400V/50Hz.Forthisapplicationtheauthorshavedevelopedamethodtoestimatetherotorpositionandthespeedwithoutarotorpositionencoder.Keywords:OPTIM,SwitchedReluctanceMotor，SensorlessSpeedControl,EstimationofRotorPosition1.IntroductionThesensorlessspeedcontrolandtheestimationoftherotorpositionhavealreadybeentreatedinseveralpublications.Theauthorsofthesepublicationspreferrablyusedsmallermotorsorhigh-speeddrivesfortheirtests.Differingfromthesepublications,thispaperwilldiscussthesensorlessspeedcontrolofamotorwitharelativelyhighratedtorqueof118Nm.Furthermore,thestrengthofthisSwitchedReluctanceMotormustbeseeninaspeedrangebelow1000r.p.m.Withinthisrange,itsefficiencyanditsdynamicisveryhigh.Wo1.ThispapertreatstheoperationofahightorqueSRdriveforlow-speedapplicationswithoutarotorpositionencoder.Theresultsofthistestdonotprovideacompletesolutionforthesensorlessspeedcontrolbuttheycanbeseenasbasicideaandasstimulationforfollowingfurthertests.Theselectionofthemethod,itsrestrictionsandpossibilitieswillbediscussedhere.2.MotordesignTheElektrotechnischeInstitutselectedtheSwitchedReluctanceMotorwith16statorpolesand12rotorteeth.Itisa4-phase-windingmachine,the4statorpolesthatareshiftedby90toeachotherformonephase-winding.3.Voltage-sourceconverterThevoltage-sourceconverterconsistsofamainsandamotorconverter.Thecommonsupplyforthethreephase-self-commutatedmainsconverteris400V/50Hz.4.Flux-currentmethodTheprocedureforthesensorlessestimationofrotorpositionandspeedmustbesuitableforthetestdrivewith18.5kW,118Nmand1500r.p.m.Itdefinitelyhastousethenon-linearmodeloftheSwitchedReluctanceMotor.AverygoodoverviewofsensorlessmethodsfordeterminingtherotorpositionofswitchedreluctancemotorsisgiveninRay.Forthetestdrive,weselectedtheflux-currentmethod.5.AnglefilterDespitethegoodresultsfortheestimationoftherotorposition,singlevaluescanvarystronglyfromtheactualposition.Therearerangeswithinthecharacteristicoftheflux-linkagewheresmallerchangesofthecurrentorfluxcauseabiggerchangeoftherotorposition.Withintheseranges,alreadysmallermeasurementinaccuraciescausearelativelybigerrorintheestimationoftherotorposition.Experimentshaveshownthattheestimationwithinananglerangingfrom-3to-7respectivelyfrom3to7operatesveryreliably.Fortheremainingrangetheestimatedangleshouldundergoaplausibilitycheck.Duetotheinertiamomentofthemotor,thespeedremainsalmostconstantduringasamplingtimeof120ms.Iftheangleoftheactualsamplinginstantwhichisestimatedfromthefluxlinkagedeviatesfromthepreviousdetectionstepininadmissablesize,thenewangleiscalculatedbythepreviousangleandproductofspeedandsamplingtime.Withinthetorquecontroltheestimatedangleisrequiredfordefiningtheswitch-on/switch-offtimesforthephasecurrents.TorqueandspeedcontroloftheSwitchedReluctanceDrivesaredescribedinWo1.TheyhavealsobeenimplementedontheDSP.传感器速度控制开关磁阻电机的工业应用摘要：电气学院的卡尔斯鲁厄大学的发展，优化和生产的开关磁阻电机功率转换器与控制工程按照最新的科学发现。电机已建造的额定输出功率18.5千瓦的1500r.p.m，适用于工业应用。共同供应电压源转换器3x400V/50Hz。针对这种应用，作者开发了一个方法来估计转子位置和速度无转子位置编码器。关键词：电刷，开关磁阻电机，速度控制传感器，转子位置估计1.导言有几个出版物介绍了速度控制传感器和估计转子位置。作者这些出版物最好是用较小的汽车或高速硬盘来验证他们的试验。与这些出版物不同，本文将讨论速度控制传感器的马达，有相对较高的额定力矩118牛顿米。此外，这个强度的开关磁阻电机必须被看作是一次速度范围如1000r.p.m。在此范围，其效率和其动态是非常高的Wo1本文处理的运行高力矩简驱动，对于低速应用无转子位置编码器。测试结果，不提供完整的解决速度控制传感器方法，但它们可以被视为基本的想法和促进下一步的试验。所选择的方法、其限制和可能性，将在这里讨论。2.汽车设计选定的电气学院的开关磁阻电动机定子与16杆和12槽。这是一个4相绕组电机，4定子极有转移的90彼此形成一相绕组。3.电压源转换器电压源转换器包括一个电源和一个电机转换。它们的三相电供应都来自整流电源转换器的400V/50Hz。4.磁通电流法程序的估计转子位置传感器位置和速度必须适合试驾与18.5千瓦，118Nm和1500r.p.m。它肯定了使用非线性模型的开关磁阻汽车。一个非常不错的概要介绍传感器方法确定转子位置的开关磁阻汽车是在热射线。为测试方便，我们选择磁通电流的方法。5.角度传感器尽管有良好的结果估计转子位置，可以改变单一的转子的实际位置。在特定的范围内，通量关系到较小变化的电流或流量造成更大的变化转子位置。在这些范围内，已经测量的较小的不准确估计